USA Today, Mar. 9, 2014: Ken Buesseler, a chemical oceanographer at the Woods Hole Oceanographic Institution […] and other scientists are calling for more monitoring. No federal agency currently samples Pacific Coast seawater for radiation, he said. “I’m not trying to be alarmist,” Buesseler said. “We can make predictions, we can do models. But unless you have results, how will we know it’s safe?” […] Last July [Tepco] acknowledged for the first time that the reactor was leaking contaminated underground water into the ocean. Since then, the news has gotten worse, and there is widespread suspicion that the problem is underreported. […] three competing models of the Fukushima radiation plume […] all predict that the plume will reach the West Coast this summer […]

NBC Nightly News, Mar. 7, 2014:

Title: Has Radiation Entered Our Food Supply Chain?
Brian Williams, anchor: Scientists from Long Beach State University have started to look for […] signs of radiation in the kelp that is found off the California coast.
Miguel Almaguer, NBC reporter: Could this kelp be contaminated with radiation from Fukushima?
Dr. Steven Manley, CSULB professor: This is used to detect the radioactive materials coming over from Fukushima.
Almaguer: Will it pose a public health threat? […] Its impact on the environment and marine life remains an unknown.
Kei Iwamoto, Ph.D. UCLA adjunct associate professor of experimental radiation oncology: We have not seen anything that should raise any kind of red flags or alarm to the general public.
Almaguer: For now, no alarm, but these researchers know their work is just beginning.